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| author | Alex Williamson <alex.williamson@redhat.com> | 2015-12-04 08:38:42 -0700 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2015-12-04 08:38:42 -0700 |
| commit | ae5515d66362b9d96cdcfce504567f0b8b7bd83e (patch) | |
| tree | 543c07268f2f11423e199e5972c9c1a506677996 /drivers/vfio/Kconfig | |
| parent | 049af1060bb81532f2700762a8ba71eb3fa81f5a (diff) | |
| download | lwn-ae5515d66362b9d96cdcfce504567f0b8b7bd83e.tar.gz lwn-ae5515d66362b9d96cdcfce504567f0b8b7bd83e.zip | |
Revert: "vfio: Include No-IOMMU mode"
Revert commit 033291eccbdb ("vfio: Include No-IOMMU mode") due to lack
of a user. This was originally intended to fill a need for the DPDK
driver, but uptake has been slow so rather than support an unproven
kernel interface revert it and revisit when userspace catches up.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio/Kconfig')
| -rw-r--r-- | drivers/vfio/Kconfig | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/drivers/vfio/Kconfig b/drivers/vfio/Kconfig index da6e2ce77495..850d86ca685b 100644 --- a/drivers/vfio/Kconfig +++ b/drivers/vfio/Kconfig @@ -31,21 +31,6 @@ menuconfig VFIO If you don't know what to do here, say N. -menuconfig VFIO_NOIOMMU - bool "VFIO No-IOMMU support" - depends on VFIO - help - VFIO is built on the ability to isolate devices using the IOMMU. - Only with an IOMMU can userspace access to DMA capable devices be - considered secure. VFIO No-IOMMU mode enables IOMMU groups for - devices without IOMMU backing for the purpose of re-using the VFIO - infrastructure in a non-secure mode. Use of this mode will result - in an unsupportable kernel and will therefore taint the kernel. - Device assignment to virtual machines is also not possible with - this mode since there is no IOMMU to provide DMA translation. - - If you don't know what to do here, say N. - source "drivers/vfio/pci/Kconfig" source "drivers/vfio/platform/Kconfig" source "virt/lib/Kconfig" |